Some patients whose wellness condition, age or various other factors cause issue may be advised to take Viagra even less frequently to see to it the procedure does not induce damage to their safety and welfare.
You must also talk with your physician before taking it with each other with bosentan, prostate ailment medication, HIV/AIDS medication, cimetidine, conivaptan or isoniazid.
If Viagra does not function from the first time your dosage may be improved.